Nawabs, Sultans, Kings, Zamindars are known to have had harems. It was common knowledge and accepted as a matter of fact. Now it has taken a slight different form - call girls, live-in relationship, extra-marital affairs. Our present rulers may have changed their nomenclature. But human nature being what it is, the system continues unabated.
The only difference is that thanks to electronic media, we start baying for their blood when something is leaked to us.